Julien_Kmeo experienced a blank website after rebuilding their Discourse forum, following the removal of a broken plugin called Quick Message.
donnay1 suggested checking a thread about an update problem, and later mentioned that disabling the Topic List Previews plugin fixed a similar issue on their site.
Julien_Kmeo applied this solution and confirmed it worked after rebuilding. However, donnay1 noted that rebuilding wasn’t necessary, and disabling the plugin was enough.
The issue was reported to the Pavilion website, and merefield informed that the problem with Topic List Previews was fixed in a recent commit. donnay1 successfully upgraded to the latest commit and reported the site functioning as expected.
Apparently, the problem was that I was using a broken plugin called Quick Message.
So I just decided to remove it (by editing app.yml and deleting the line) and rebuild again.
But when it was finished and tried to come back on the forum, I can only see my background on the page and nothing else.